Perrin Pitch Stop Mount Silver WRX / STI (2002-2018) Infiniti and has properties to retain

and has properties to retain more spring stroke

35 fins per inch

For year’s enthusiast have had to compromise durability for drivability and vise versa

- AT90 Alignment tool

Perrin's pulley is not underdriven and will not affect the life of your engine

Perrin Pitch Stop Mount Silver WRX / STI (2002-2018) Infiniti and has properties to retainReduce drivetrain shudder under hard acceleration by installing a Perrin Pitch Stop mount. The factory pitch stop mount is designed to control the pitching of the engine and transmission under light to normal acceleration. Subaru's with power and drivetrain upgrades will need a beefier, more capable pitch stop mount to replace the wimpy soft rubber OEM piece. The Perrin Pitch Stop mount controls the movement of the drivetrain in both on and off